IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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5.2.2 Release Notes

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5.2.2 Release Notes

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Also see Breaking changes in 5.2.

Bug fixes

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Aggregations

Restore support for the include/pattern syntax. #23140 (issue: #22933)

Cluster

Don’t set local node on cluster state used for node join validation #23311 (issue: #21830)
Cluster allocation explain to never return empty response body #23054

Index APIs

Ensure shrunk indices carry over version information from its source #22469 (issue: #22373)

Internal

Always restore the ThreadContext for operations delayed due to a block #23349

Java REST Client

RestClient asynchronous execution should not throw exceptions #23307

Network

Respect promises on pipelined responses #23317 (issues: #23310, #23322)
Ensure that releasing listener is called #23310

Plugin Ingest Attachment

Remove support for Visio and potm files #23214 (issues: #22077, #22079, #22963)

REST

Properly encode location header #23133 (issues: #21057, #23115)

Stats

Fix control group pattern #23219 (issue: #23218)

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